Calculadora de Pegada de Plástico
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Plástico (kg/ano) = sacolas×52×0,006 + garrafas×52×0,025 + embalagens×365×0,01
About this calculator
The Plastic Footprint Calculator estimates the amount of disposable plastic you generate in a year, based on your consumption of plastic bags, PET bottles, and everyday packaging. The calculation uses average weights: a bag weighs about 6 grams, a PET bottle 25 grams, and a common package 10 grams. By multiplying weekly or daily use by these weights and by one year, you get the total in kilograms.
To use the calculator, enter how many plastic bags you use per week, how many PET bottles you consume weekly, and how many packages (e.g., food or cleaning products) you discard daily. The result shows your individual impact, helping you visualize the volume of waste generated. This tool is useful for those looking to reduce plastic consumption and adopt more sustainable habits.
Keep in mind that the calculator only considers common disposable plastics, not items like straws, cups, or larger packaging. The result is an estimate; actual weight may vary by material type and thickness. Use the value as a starting point to rethink your consumption and seek reusable alternatives.
The plastic footprint is an environmental indicator that shows how much each person contributes to plastic pollution. Reducing this number helps lessen the burden on landfills, oceans, and ecosystems. Small changes, like replacing bags with reusable totes and disposable bottles with refillable ones, can make a big difference over time.
Frequently asked questions
What is the plastic footprint?
It is the total amount of disposable plastic a person consumes and discards in a year, measured in kilograms. It helps understand individual environmental impact.
How can I reduce my plastic footprint?
Replace plastic bags with reusable totes, use refillable bottles, and avoid disposable packaging. Prefer bulk products and minimal packaging.
Does the calculator consider recyclable plastics?
Yes, but the focus is on total consumption of disposable plastics. Recycling reduces impact, but avoiding unnecessary use is best.
Why does the calculation use average weights?
The average weights (6g for bags, 25g for bottles, 10g for packages) are based on common data. They allow a quick and practical estimate.
Can I calculate other types of plastic?
Currently, the calculator focuses on bags, PET bottles, and packages. Items like straws or cups are not included, but you can manually adjust values.